Wheat flour grinding machine with controllable grinding precision

Abstract

The wheat flour grinding machine comprises an inclined block, a material collecting plate is fixedly connected to the top of the inclined block, supporting rods are fixedly connected to the periphery of the top of the material collecting plate, a grinding outer disc is fixedly connected between the tops of the four supporting rods, and when a pressing nut on an external thread is rotated, the grinding outer disc is fixedly connected to the periphery of the top of the material collecting plate; when wheat or wheat flour is ground, a lower pressing plate can press an external thread downwards, then a pressure spring is compressed, the pressure spring applies downward pressure to a pressing ring at the moment, and the pressure above an inner grinding disc is increased through a hollow shaft and a rotating shaft, so that finer wheat flour can be obtained when the wheat or the wheat flour is ground; and the wheat is ground for multiple times in a stepped manner, so that the grinding time can be shortened.

Description

Technical Field

[0001] The invention relates to the technical field of wheat grinding, in particular to a wheat flour grinder with controllable grinding accuracy. Background Art

[0002] At present, in agricultural production and food processing, it is often necessary to grind crops into powder for pasta processing. The traditional grinding method is through stone mill, the powder is coarse, the efficiency is low, and it is not suitable for industrial production. The existing mechanical equipment mostly adopts roller grinding and crushing, the equipment structure is complex, the grinding is not comprehensive, and it is not as healthy as stone mill grinding, and the coarseness of the grinding is difficult to adjust.

[0003] In order to ensure that the wheat flour ground is relatively fine, the current wheat flour grinder needs to apply sufficient pressure during grinding. However, the high pressure easily leads to a long grinding time, resulting in low grinding efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a wheat flour grinder with controllable grinding accuracy. By rotating the clamping nut on the external thread, the lower pressure plate can press down the external thread, thereby compressing the pressure spring. At this time, the pressure spring applies downward pressure to the pressure ring, and increases the pressure on the top of the inner grinding disc through the hollow shaft and the rotating shaft, so that finer wheat flour can be obtained when wheat or wheat flour is ground. At the same time, compared with the prior art, the wheat is ground in a step-by-step manner for multiple times, which can reduce its grinding time.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A wheat flour grinder with controllable grinding accuracy comprises an inclined block, a material receiving plate is fixedly connected to the top of the inclined block, support rods are fixedly connected to the top of the material receiving plate on all four sides, a grinding outer disc is fixedly connected between the tops of four support rods, bottom rods are fixedly connected to the inclined surface of the inclined block on all four sides, top rods are arranged on the tops of the four bottom rods, a top plate is arranged between the tops of the four top rods, a fixed shell is fixedly connected to one side of the top plate, a fixed frame is fixedly connected to the inner surface of the fixed shell, a rotatable rotating shaft is arranged on the inner surface of the fixed frame through a bushing, a hollow shaft for pressing down the rotating shaft is arranged on the top of the rotating shaft, and an inner grinding disc is fixedly connected to the bottom end of the rotating shaft.

[0007] As a further solution of the present invention: a servo motor is fixedly connected to one side of the top plate, a first groove wheel is fixedly connected to the output end of the servo motor, a second groove wheel is arranged on the outer surface of the hollow shaft, and a transmission belt is arranged between the outer surface of the second groove wheel and the first groove wheel.

[0008] As a further solution of the present invention: the inner surface of the hollow shaft is rotatably connected with a pressure rod, the outer surface of the pressure rod is sequentially sleeved with a pressure ring, a pressure spring and a lower pressure plate from bottom to top, the bottom of the pressure ring is rotatably connected to the top of the hollow shaft, the outer surface of the pressure rod is provided with an external thread, the outer surface of the external thread is threadedly connected with a clamping nut located above the lower pressure plate, and the outer surface of the lower pressure plate is slidably connected to the inner surface of the fixed shell.

[0009] As a further solution of the present invention: a plurality of limit strips are fixedly connected to the surface of the hollow shaft, and a plurality of limit grooves matching the limit strips are formed on the inner surface of the rotating shaft.

[0010] As a further solution of the present invention: a discharge ring is provided on the top of the inner grinding disc, a gradient groove is provided on the bottom of the inner grinding disc, a plurality of through holes connected to the gradient groove are provided on the inner surface of the discharge ring, and a grinding block is fixedly connected to the top of the grinding outer disc.

[0011] As a further solution of the present invention: a plurality of discharge holes are provided on the top of the outer grinding disc, and the inner surfaces of the discharge holes are connected with external threads.

[0012] As a further solution of the present invention: a threaded hole is opened at the top of the bottom rod, a threaded rod is fixedly connected to the bottom end of the top rod, and the threaded rod is threadedly connected to the threaded hole.

[0013] Beneficial effects of the present invention:

[0014] (1) In the present invention, a fixing frame is arranged in the fixed shell, and the shaft sleeve in the fixing frame is used to limit the rotating shaft. In combination with the hollow shaft fixed to the rotating shaft and the pressure rod that can rotate and slide on the hollow shaft, when the clamping nut on the external thread is rotated, the lower pressure plate can press down the external thread, thereby compressing the pressure spring. At this time, the pressure spring applies downward pressure to the pressure ring, and increases the pressure on the upper side of the inner grinding disc through the hollow shaft and the rotating shaft, so that finer wheat flour can be obtained when grinding wheat or wheat flour. At the same time, compared with the prior art, the wheat can be ground multiple times in a step-by-step manner, which can reduce its grinding time.

[0015] (2) In the present invention, by opening a gradient groove on the inner grinding disc and utilizing the grinding blocks on the grinding outer disc, when the inner grinding disc rotates, the grinding area of ​​the wheat can be made larger, thereby effectively increasing its grinding speed. At the same time, a plurality of discharge holes are opened on the grinding outer disc to increase its discharge speed.

[0016] (3) In the present invention, by connecting a limit strip to the surface of the hollow shaft and utilizing the matching relationship between the limit groove and the limit strip, slippage between the hollow shaft and the second groove wheel can be avoided. At the same time, when the pressure of the pressure ring on the hollow shaft is increased, the inner grinding disc may move downward. At this time, the second groove wheel can slide on the hollow shaft, thereby ensuring power transmission while enabling the pressure ring to press down the hollow shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the external structure of the grinding machine in the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the fixed shell in the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the fixing frame in the present invention;

[0021] Figure 4 It is a top view of the external structure of the hollow shaft of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the grinding outer disc in the present invention;

[0023] Figure 6 It is a top view of the external structure of the grinding outer disc in the present invention.

[0024] In the figure: 1. tilting block; 2. receiving plate; 3. supporting rod; 4. grinding outer disc; 5. bottom rod; 6. top rod; 7. top plate; 8. fixed shell; 9. servo motor; 10. first groove wheel; 11. transmission belt; 12. fixed frame; 13. rotating shaft; 14. hollow shaft; 15. second groove wheel; 16. bushing; 17. inner grinding disc; 18. pressure rod; 19. pressure ring; 20. pressure spring; 21. external thread; 22. clamping nut; 23. lower pressure plate; 24. limiting strip; 25. limiting groove; 26. discharge ring; 27. through hole; 28. discharge hole; 29. ​​grinding block; 30. gradient groove; 31. threaded hole; 32. threaded rod; 33. discharge pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 6As shown, the present invention is a wheat flour grinder with controllable grinding accuracy, comprising an inclined block 1, a receiving plate 2 is fixedly connected to the top of the inclined block 1, support rods 3 are fixedly connected to the top of the receiving plate 2 on all sides, a grinding outer disc 4 is fixedly connected between the tops of four support rods 3, bottom rods 5 are fixedly connected to the inclined surface of the inclined block 1 on all sides, top rods 6 are arranged on the tops of the four bottom rods 5, a top plate 7 is arranged between the tops of the four top rods 6, a fixed shell 8 is fixedly connected to one side of the top plate 7, a fixed frame 12 is fixedly connected to the inner surface of the fixed shell 8, a rotatable rotating shaft 13 is arranged on the inner surface of the fixed frame 12 through a shaft sleeve 16, and the top of the rotating shaft 13 A hollow shaft 14 for pressing down the rotating shaft 13 is provided at the end, and an inner grinding disc 17 is fixedly connected to the bottom end of the rotating shaft 13. A pressure rod 18 is rotatably connected to the inner surface of the hollow shaft 14. The outer surface of the pressure rod 18 is sequentially sleeved with a pressure ring 19, a pressure spring 20 and a lower pressure plate 23 from bottom to top. When the hollow shaft 14 rotates, the pressure ring 19 can rotate on the top end of the hollow shaft 14, and the bottom of the pressure ring 19 is rotatably connected to the top end of the hollow shaft 14. An external thread 21 is provided on the outer surface of the pressure rod 18, and a clamping nut 22 is threadedly connected to the outer surface of the external thread 21 and located above the lower pressure plate 23. The outer surface of the lower pressure plate 23 is slidably connected to the inner surface of the fixed shell 8.By arranging a fixing frame 12 in the fixing shell 8, the shaft sleeve 16 in the fixing frame 12 is used to limit the rotating shaft 13, and then the hollow shaft 14 fixed by the rotating shaft 13 and the pressure rod 18 that can rotate and slide on the hollow shaft 14 are matched, when the clamping nut 22 on the external thread 21 is rotated, the lower pressure plate 23 can press down the external thread 21, thereby compressing the pressure spring 20. At this time, the pressure spring 20 applies downward pressure to the pressure ring 19, and the pressure on the upper side of the inner grinding disc 17 is increased through the hollow shaft 14 and the rotating shaft 13, so that finer wheat flour can be obtained when wheat or wheat flour is ground. At the same time, compared with the prior art, the wheat is ground multiple times in a step-by-step manner, which can reduce its grinding time. A servo motor 9 is fixedly connected to one side of the top plate 7, and the servo motor 9 is electrically connected to an external power supply. The output end of the servo motor 9 is fixedly connected with the first groove wheel 10, the outer surface of the hollow shaft 14 is provided with the second groove wheel 15, and the transmission belt 11 is provided between the outer surface of the second groove wheel 15 and the first groove wheel 10. The surface of the hollow shaft 14 is fixedly connected with a plurality of limit bars 24, and the inner surface of the rotating shaft 13 is provided with a plurality of limit grooves 25 matched with the limit bars 24. By connecting the limit bars 24 to the surface of the hollow shaft 14 and utilizing the matching relationship between the limit grooves 25 and the limit bars 24, slipping between the hollow shaft 14 and the second groove wheel 15 can be avoided. At the same time, when the pressure of the pressure ring 19 on the hollow shaft 14 is increased, the inner grinding disc 17 may move downward. At this time, the second groove wheel 15 can slide on the hollow shaft 14, ensuring power transmission while enabling the pressure ring 19 to press down the hollow shaft 14.

[0027] A discharge ring 26 is provided at the top of the inner grinding disc 17, a gradient groove 30 is provided at the bottom of the inner grinding disc 17, a plurality of through holes 27 connected to the gradient groove 30 are provided on the inner surface of the discharge ring 26, a grinding block 29 is fixedly connected to the top of the grinding outer disc 4, a plurality of discharge holes 28 are provided at the top of the grinding outer disc 4, a discharge pipe 33 is connected to the inner surface of the discharge hole 28, and the discharge pipe 33 is connected to the external pipeline for direct delivery to the desired position. By providing the gradient groove 30 on the inner grinding disc 17 and utilizing the grinding block 29 on the grinding outer disc 4, when the inner grinding disc 17 rotates, the grinding area of ​​wheat can be made larger, thereby effectively increasing its grinding speed. At the same time, multiple discharge holes 28 are provided on the grinding outer disc 4 to increase its discharge speed.

[0028] A threaded hole 31 is provided at the top of the bottom rod 5, and a threaded rod 32 is fixedly connected to the bottom end of the top rod 6. The threaded rod 32 is threadedly connected to the threaded hole 31. By rotating the top rod 6 and the top plate 7, the fixed shell 8 can be removed, thereby facilitating the removal of the inner grinding disc 17 so that it can be cleaned.

[0029] The working principle of the present invention is as follows: first, the wheat is poured into the discharge ring 26 on the inner grinding disc 17, so that the wheat falls into the inside of the gradient groove 30 from the through hole 27, and then the servo motor 9 is started to rotate, which further drives the first groove wheel 10 to rotate, and through the connection relationship between the transmission belt 11 and the second groove wheel 15, the matching relationship between the limit strip 24 and the limit groove 25 on the hollow shaft 14 is utilized to make the rotating shaft 13 rotate inside the shaft sleeve 16, thereby driving the inner grinding disc 17 to rotate, and at this time, the wheat is in the gradient groove 30. The powder is ground between the wall and the inner wall of the grinding outer disk 4. After being ground into powder, the powder is discharged from the bottom of the inner grinding disk 17 and poured out from the external thread 21 in the discharge hole 28 and collected by the receiving plate 2. When it is necessary to adjust the grinding accuracy, the clamping nut 22 is driven by an external wrench to rotate, so that the lower pressure plate 23 presses the pressure rod 18 downward. At this time, the pressure rod 18 applies downward pressure to the pressure ring 19, thereby increasing the pressure of the hollow shaft 14 on the rotating shaft 13. At this time, when the wheat or wheat flour is ground again, the fineness of the grinding is increased.

[0030] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A wheat flour grinder with controllable grinding accuracy, comprising a tilting block (1), It is characterized in that The top of the tilting block (1) is fixedly connected to a material receiving plate (2), the top of the material receiving plate (2) is fixedly connected to support rods (3) on all sides, a grinding outer disc (4) is fixedly connected between the tops of the four support rods (3), the inclined surface of the tilting block (1) is fixedly connected to bottom rods (5) on all sides, top rods (6) are arranged on the tops of the four bottom rods (5), a top plate (7) is arranged between the tops of the four top rods (6), a fixed shell (8) is fixedly connected to one side of the top plate (7), a fixed frame (12) is fixedly connected to the inner surface of the fixed shell (8), a rotatable rotating shaft (13) is arranged on the inner surface of the fixed frame (12) through a shaft sleeve (16), a hollow shaft (14) for pressing down the rotating shaft (13) is arranged at the top of the rotating shaft (13), and an inner grinding disc (17) is fixedly connected to the bottom end of the rotating shaft (13).

2. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that A servo motor (9) is fixedly connected to one side of the top plate (7), a first groove wheel (10) is fixedly connected to the output end of the servo motor (9), a second groove wheel (15) is arranged on the outer surface of the hollow shaft (14), and a transmission belt (11) is arranged between the second groove wheel (15) and the outer surface of the first groove wheel (10).

3. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that The inner surface of the hollow shaft (14) is rotatably connected to a pressure rod (18), and the outer surface of the pressure rod (18) is sequentially sleeved with a pressure ring (19), a pressure spring (20) and a lower pressure plate (23) from bottom to top. The outer surface of the pressure rod (18) is provided with an external thread (21), and a clamping nut (22) is threadedly connected to the outer surface of the external thread (21) and located above the lower pressure plate (23). The outer surface of the lower pressure plate (23) is slidably connected to the inner surface of the fixed shell (8).

4. A wheat flour grinding machine with controllable grinding accuracy according to claim 3, It is characterized in that The bottom of the pressure ring (19) is rotatably connected to the top of the hollow shaft (14).

5. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that A plurality of limiting strips (24) are fixedly connected to the surface of the hollow shaft (14), and a plurality of limiting grooves (25) matching the limiting strips (24) are formed on the inner surface of the rotating shaft (13).

6. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that A discharge ring (26) is provided on the top of the inner grinding disc (17), a gradient groove (30) is provided on the bottom of the inner grinding disc (17), a plurality of through holes (27) connected to the gradient groove (30) are provided on the inner surface of the discharge ring (26), and a grinding block (29) is fixedly connected to the top of the grinding outer disc (4).

7. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that A plurality of discharge holes (28) are provided on the top of the grinding outer disc (4), and the inner surfaces of the discharge holes (28) are connected to discharge pipes (33).

8. A wheat flour grinder with controllable grinding accuracy according to claim 1, It is characterized in that A threaded hole (31) is provided at the top of the bottom rod (5), a threaded rod (32) is fixedly connected to the bottom end of the top rod (6), and the threaded rod (32) is threadedly connected to the threaded hole (31).

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